CN104592877B - Woodenware lacquer and preparation method thereof, application process - Google Patents
Woodenware lacquer and preparation method thereof, application process Download PDFInfo
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- CN104592877B CN104592877B CN201510009973.6A CN201510009973A CN104592877B CN 104592877 B CN104592877 B CN 104592877B CN 201510009973 A CN201510009973 A CN 201510009973A CN 104592877 B CN104592877 B CN 104592877B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
Abstract
A kind of woodenware lacquer, is 100 by mass ratio:10~15 the first component mixed liquor and the second component mixed liquor composition；First each ingredient percent of component mixed liquor is in terms of 100%：Aqueous polyurethane dispersion 35~45%, wetting dispersing agent 0.5~1.0%, coalescents 2~4%, the first defoamer 0.2~0.3%, the second defoamer 0.3~0.5%, flatting silica 1~2%, scratch resistance auxiliary agent 2~3%, water soluble acrylic acid dispersion 35~45%, substrate wetting agents 0.3~0.5%, levelling agent 0.3~0.5%, in-can preservation agent 0.1~0.15%, thickener 0.5~1%, deionized water or pure water 5~15%；Second each ingredient percent of component mixed liquor is in terms of 100%：The poly- diisocyanate 85% of water-dispersion type and diluent 15%.A kind of preparation method and application method of woodenware lacquer.The woodenware lacquer excellent combination property.
Description
Technical field
The present invention relates to technical field of coatings, and in particular to a kind of woodenware lacquer and preparation method thereof, application process.
Background technology
Traditional solvent-based two-component polyurethane woodware coating is with its excellent mechanical performance, splendid chemical resistance and resistance to
Solvent nature occupies critical role in Coating Market, is widely used in the fields such as house decoration, hotel's finishing and furniture application,
But a large amount of solvents can be discharged in the production and use process, at the same time containing free TDI molecules, health and environment are protected
Shield has harm, and smell is big in construction, is not easy to be received by construction personnel.And although the construction of aqueous one-component woodcare paint is simple,
Health environment-friendly, but since hardness of paint film is not high and it is too slow to rise, chemical mediator-resitant property is bad, and paint film curing period is again too long, just
Need can be only achieved final hardness and mechanical performance within 7 days in the case of often.Therefore, the film performance of aqueous one-component woodcare paint can not
Match in excellence or beauty with two-component solvent based product.
The content of the invention
The above-mentioned deficiency for aiming to overcome that the prior art of the embodiment of the present invention, there is provided a kind of woodenware lacquer, has paint
Film rate of drying is fast, hardness and the mechanical performance rate of climb are fast, transparency is splendid, scratch resistance, soft handle, paint film property are excellent etc.
Advantage.
The another object of the embodiment of the present invention is the above-mentioned deficiency for overcoming the prior art, there is provided a kind of system of woodenware lacquer
Preparation Method, can prepare above-mentioned woodenware lacquer, and technique is simple, and cost is relatively low, be easy to operate and control.
A further object for the embodiment of the present invention is the above-mentioned deficiency for overcoming the prior art, there is provided a kind of woodenware lacquer is answered
With method, can be applied to using above-mentioned woodenware lacquer on the woodenware in furniture, door and window, bathroom etc..
In order to realize foregoing invention purpose, the technical solution of the embodiment of the present invention is as follows：
A kind of woodenware lacquer, is 100 by mass ratio:10~15 the first component mixed liquor and the second component mixed liquor group
Into；Wherein, each ingredient percent of the first component mixed liquor is made of in terms of 100% following component：Aqueous polyurethane
Dispersion 35~45%, wetting dispersing agent 0.5~1.0%, coalescents 2~4%, the first defoamer 0.2~0.3%, second
Defoamer 0.3~0.5%, flatting silica 1~2%, scratch resistance auxiliary agent 2~3%, water soluble acrylic acid dispersion 35~45%, base material
Wetting agent 0.3~0.5%, levelling agent 0.3~0.5%, in-can preservation agent 0.1~0.15%, thickener 0.5~1%, deionization
Water or pure water 5~15%；Each ingredient percent of second component mixed liquor is made of in terms of 100% following component：
The poly- diisocyanate 85% of water-dispersion type and diluent 15%.
A kind of preparation method of woodenware lacquer, including：
Component as follows in terms of mass percentage is mixed to get the first component mixed liquor：Aqueous polyurethane dispersion 35
~45%, wetting dispersing agent 0.5~1.0%, coalescents 2~4%, the first defoamer 0.2~0.3%, the second defoamer 0.3
~0.5%, flatting silica 1~2%, scratch resistance auxiliary agent 2~3%, water soluble acrylic acid dispersion 35~45%, substrate wetting agents 0.3
~0.5%, levelling agent 0.3~0.5%, in-can preservation agent 0.1~0.15%, thickener 0.5~1%, deionized water or pure
Water 5~15%, each component in the first component mixed liquor amount to 100%；
Component as follows in terms of mass percentage is mixed to get the second component mixed liquor：The poly- diisocyanate of water-dispersion type
Ester 85% and diluent 15%, each component in the second component mixed liquor amount to 100%；
It is 100 according to the mass ratio of the first component mixed liquor and the second component mixed liquor:10~15 wrap respectively
Dress obtains the woodenware lacquer.
And a kind of application process of woodenware lacquer as described above, including：
By the first component mixed liquor and the second component mixed liquor in mass ratio 100:10~15 is mutually mixed, prepares uniform mixing
Liquid；
The mixed liquor is added after 10%~20% clear water opens dilute stir evenly and brushes or is sprayed on woodenware.
The woodenware lacquer of the embodiment of the present invention is a kind of aqueous double-component dumb light woodenware lacquer.The woodenware lacquer be with containing-
The aqueous polyurethane dispersion of OH groups and the water soluble acrylic acid dispersion of the group containing-OH are main base, and the main base is same
The poly- diisocyanate curing agent of water-dispersion type containing-NCO group crosslinks reaction film-forming, is that a kind of performance and environmental protection are simultaneous
Standby high-quality woodwork coating, not only the hardness with solvent based coating is high, medium-resistance is good, film-forming temperature is low and attachment for it
The advantages that power is strong, and volatile organic compounds VOC content is low, well should can be obtained in house decoration and furniture application
With.
The preparation method of the woodenware lacquer of the embodiment of the present invention prepares above-mentioned woodenware lacquer, only need to be according to formula by each component
Added by step so that each component is sufficiently mixed uniformly, and without special equipment, therefore, this method technique is simple, is adapted to
Industrialized production, has saved energy consumption, reduces cost.
The application process of the woodenware lacquer of the embodiment of the present invention can be applied on the woodenware in furniture, door and window, bathroom etc., can
Supporting aqueous one-component or two-component woodenware priming paint use.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
An embodiment of the present invention provides a kind of woodenware lacquer, is 100 by mass ratio:10~15 the first component mixed liquor and
Second component mixed liquor forms.
Wherein, first each ingredient percent of component mixed liquor is made of in terms of 100% following component：Water-based poly- ammonia
Ester dispersion 35~45%, wetting dispersing agent 0.5~1.0%, coalescents 2~4%, the first defoamer 0.2~0.3%,
Two defoamers 0.3~0.5%, flatting silica 1~2%, scratch resistance auxiliary agent 2~3%, water soluble acrylic acid dispersion 35~45%, base
Material wetting agent 0.3~0.5%, levelling agent 0.3~0.5%, in-can preservation agent 0.1~0.15%, thickener 0.5~1%, go from
Sub- water or pure water 5~15%.
Second each ingredient percent of component mixed liquor is made of in terms of 100% following component：Water-dispersion type poly- two is different
Cyanate 85% and diluent 15%.
The woodenware lacquer of the embodiment of the present invention using aqueous polyurethane dispersion and water soluble acrylic acid dispersion as matrix, and with
Act synergistically between curing agent, flatting silica, scratch resistance auxiliary agent and other components so that the paint film formed after final crosslinking is dry
With high rigidity, high scratch resistance energy, excellent wearability, water resistance, chemical resistance.In addition, compare single-component water-based woodenware
Product is painted, hardness and mechanical performance lifting speed are fast, and higher hardness of paint film and excellent is can reach after drying 24h at normal temperatures
Chemical resistance, and construction influenced by environment temperature, humidity it is relatively small.Therefore, the woodenware of the embodiment of the present invention is clear
The overall synthetic excellent performance of paint.
Specifically, aqueous polyurethane dispersion be hydroxyl functional group polyester polyurethane dispersion, its solids content
For 36~40wt%.The mass percentage of aqueous polyurethane dispersion is preferably 35%, 40% and 45%.Aqueous polyurethane point
The crosslinking of granular media and curing agent may be such that the woodenware lacquer film of the embodiment of the present invention has remarkable chemical resistance, good flexible
Property, the advantages that high grade of transparency, high richness, quick-drying, hardness are high, working life is long and timber warm colour degree is high.
Specifically, water soluble acrylic acid dispersion is the anion pp acid dispersion of hydroxyl functional group, its solid contains
Measure as 38~42wt%.The mass percentage of water soluble acrylic acid dispersion is preferably 35%, 40% and 45%.Water soluble acrylic acid
Dispersion may be such that the woodenware lacquer film of the embodiment of the present invention is resistance to outstanding mechanical endurance and chemistry with curing agent crosslinking
Property.
Delustring is not easy due to adding the woodenware lacquer product after aqueous polyurethane dispersion, and cost is higher, therefore,
It is used in mixed way by adding lower-cost water soluble acrylic acid dispersion and aqueous polyurethane dispersion, makes product be more prone to disappear
Light, and comprehensive cost substantially reduces, and has outstanding mechanical endurance and chemical resistance, is more suitable for doing dumb light product.Due to adding
The validity period of woodenware lacquer product after water soluble acrylic acid dispersion is short, the up time when 3~4 is small, therefore, by adding
Enter aqueous polyurethane dispersion and water soluble acrylic acid dispersion is used in mixed way, after curing agent mixing match, be greatly improved production
The validity period of product, the up time up to 5~6 it is small when, meet factory and finishing the needs of.
Specifically, wetting dispersing agent is alkyl polyoxyethylene ether nonionic surface active agent, such as Clariant Clariant
The wetting dispersing agent of the model Genapol X 080 of production.The mass percentage of wetting dispersing agent is preferably 0.5%,
1.0%.Wetting dispersing agent causes product to have good stability, improves the dispersed arrangement of flatting silica, paint film is not easy floating,
Gloss is uniform.
Specifically, coalescents are gylcol ether coalescents or propane diols ethers coalescents, such as butyl glycol ether
BCS, dipropylene DPNB.The mass percentage of coalescents is preferably 2%, 3% and 4%.
Specifically, the first defoamer is polyether siloxane copolymer class defoamer, the model of such as German high production of enlightening
The defoamer of TEGO AIREX 902W.The mass percentage of first defoamer is preferably 0.2%, 0.25% and 0.3%.The
One defoamer is a kind of deaeration agent emulsion that efficiently height mixes, it is possible to increase the rate of climb of wet film air entrapment, makes in film
Adjacent minute bubbles, which assemble mutually merging, becomes air pocket, so as to eliminate microvesicle, but also plays the role of auxiliary at the same time and eliminates bulla.
Specifically, the second defoamer is the mixing species defoaming of the hydrophobic solid and brokenly bubble polysiloxanes in polyethylene glycol
The defoamer of agent, such as the model BYK 024 of Germany's Bi Ke chemical productions.The mass percentage of second defoamer is preferably
0.3%th, 0.4% and 0.5%.Second defoamer mainly comes into force in film coated surface, destroys the bubble for rising to surface.By first
Defoamer and the second defoamer carry out rational collocation application, efficiently solve the deaeration inside film and the defoaming on surface.
Specifically, flatting silica produces for a kind of vapor phase method, and transparency pole fabulous without the extinction effect of surface treatment
High flatting silica.The mass percentage of flatting silica is preferably 1%, 2%.The flatting silica particle size is 3~6 microns, especially
Water paint is suitably applied, flatting silica is dispersed in the slurry of woodenware lacquer, easily scattered, the imparting splendid extinction of paint film
And transparency, there is more preferable compatibility and lower oil absorption, so as to prepare the transparent excellent clear face of water-based dumb light
Paint.The flatting silica can be the flatting silica for the model EVONIK TS100 for winning wound Degussa production.
Specifically, scratch resistance auxiliary agent is is micronized organically-modified polymer, such as the model BYK of Germany's Bi Ke chemical productions
The scratch resistance auxiliary agent of CERAFLOUR 1000.The mass percentage of scratch resistance auxiliary agent is preferably 2%, 2.5% and 3%.It is anti-zoned
Hinder auxiliary agent to can be uniformly dispersed in the slurry of woodenware lacquer, there is delustring, and the function of the product high grade of transparency can be kept.Scratch resistance
Auxiliary agent component is dispersed in the slurry of woodenware lacquer, in the solidification process of woodenware lacquer paint film, scratch resistance auxiliary agent and its
Interaction between his component molecule, assigns woodenware lacquer paint film splendid slipping, anti-scratch scratch resistant and adhesion inhibiting properties.
Specifically, substrate wetting agents are Siloxane-Oxyalkylene Copolymers class surfactant, the model of such as German high production of enlightening
For the substrate wetting agents of TEGO Wet 270.The mass percentage of substrate wetting agents is preferably 0.3%, 0.4% and 0.5%.
Specifically, levelling agent is acrylic copolymer surface modifier, such as the model BYK381 of Germany's Bi Ke chemical productions
Levelling agent.The mass percentage of substrate wetting agents is preferably 0.3%, 0.4% and 0.5%.The levelling agent only promotes levelling
Property, on surface tension without influence, surface defect is avoided, such as shrinkage cavity and pinprick.
Specifically, in-can preservation agent is a kind of isothiazolinone biocide agent without formaldehyde and organic volatile (VOC),
Such as the fungicide for the model ACTICIDE RS CONC that Sol THOR companies produce.The mass percentage of in-can preservation agent is excellent
Elect 0.1% and 0.15% as.To causing, aqueous product pollutes and the bacterium of degraded, yeast and mold have very for in-can preservation agent
The bactericidal activity of wide spectrum, suitable for the hygrometric state anti-corrosion of aqueous product.
Specifically, thickener for polyurethane associate nonionic thickener, as ROHM AND HAAS produce model RM-8W,
The thickener of RM-12W, RM-2020.The mass percentage of thickener is preferably 0.5%, 0.8% and 1%.
Above-mentioned substrate wetting agents, levelling agent, defoamer and being used cooperatively for thickener cause woodenware lacquer product with excellent
Different workability and coating surface effect.
Specifically, the poly- diisocyanate of water-dispersion type be in water can self-emulsifying type poly- diisocyanate, its solid contains
Amount about 100%, such as the Bayer waterborne curing agent for the model Bayhydur XP2655 that Bayer produces.
Specifically, diluent is propane diols ether solvent, such as propylene glycol methyl ether acetate PMA, is mainly used for reducing poly-
Diisocyanate curing agent viscosity, ensures the good mixing of curing agent and waterborne polymeric, improves workability.
In addition, after testing, have in the various raw material that the aqueous double-component dumb light woodenware lacquer of the embodiment of the present invention uses
Evil material limitation and finished product meet the requirement of GB24410-2009 standards, while end properties meet GB/T 23999-2009 marks
Alignment request.
The embodiment of the present invention additionally provides a kind of preparation method of woodenware lacquer, includes the following steps：
Step S01：Component as follows in terms of mass percentage is mixed to get the first component mixed liquor：Aqueous polyurethane
Dispersion 35~45%, wetting dispersing agent 0.5~1.0%, coalescents 2~4%, the first defoamer 0.2~0.3%, second
Defoamer 0.3~0.5%, flatting silica 1~2%, scratch resistance auxiliary agent 2~3%, water soluble acrylic acid dispersion 35~45%, base material
Wetting agent 0.3~0.5%, levelling agent 0.3~0.5%, in-can preservation agent 0.1~0.15%, thickener 0.5~1%, deionization
Water or pure water 5~15%, each component in the first component mixed liquor amount to 100%；
Step S02：Component as follows in terms of mass percentage is mixed to get the second component mixed liquor：Curing agent 85%
With diluent 15%, each component in the second component mixed liquor amounts to 100%；
Step S03：It is 100 according to the mass ratio of the first component mixed liquor and the second component mixed liquor:10~15 wrap respectively
Dress obtains woodenware lacquer.
Specifically, the process of step S01, which has, can specifically include following steps：
Step S11：Wetting dispersing agent, coalescents, defoamer are added in aqueous polyurethane dispersion, are configured to first
Mixed liquor；
Step S12：Flatting silica is added in the first mixed liquor, is configured to the second mixed liquor；
Step S13：Scratch resistance auxiliary agent is added in the second mixed liquor, is configured to the 3rd mixed liquor；
Step S14：Water soluble acrylic acid dispersion, substrate wetting agents, levelling agent, in-can preservation agent, thickener are added the
In three mixed liquors, the 4th mixed liquor is configured to；
Step S15：Deionized water or pure water are added in the 4th mixed liquor, preparation obtains the first component mixed liquor.
Specifically, above-mentioned steps S11 prepares the first mixed liquor, step S12 prepares the second mixed liquor, step S13 prepares the
Three mixed liquors, step S14 prepare the 4th mixed liquor, step S14 is mixed to get the first component mixed liquor and step S02 obtains second
The process of component mixed liquor can be accompanied by stirring, to make each component more rapidly be uniformly mixed.Wherein, step S11
The time of the stirring of~step S13 is preferably 10~15 minutes, and step S14, the time of the stirring of step S15 and step S02 is excellent
Elect as 4~8 minutes.The rotating speed of above-mentioned all stirrings can be 400~600 revs/min.Certainly, the present invention is not endangered with this
Danger, as long as can make it that each component in the first component mixed liquor and the second component mixed liquor is dispersed, the rotating speed of stirring
It can be adjusted flexibly with the time according to actual production conditions.
Specifically, the packaging of above-mentioned steps S03 is separately to pack the first component mixed liquor and the second component mixed liquor, tool
The manner of packing of body is such as packed according to manner of packing commonly used in the art using glue tank.
The preparation method of the above-mentioned woodenware lacquer of the embodiment of the present invention only need to be according to the first component mixed liquor and the second component
The formula of mixed liquor is added each component by step, is sufficiently mixed uniformly by each components of means such as stirrings, without multiple
General labourer's sequence, without special equipment so that this method technique is simple, is adapted to industrialized production, has saved energy consumption, reduced into
This.
The embodiment of the present invention additionally provides a kind of application process of woodenware lacquer, specifically comprises the following steps：
Step S21：By the first component mixed liquor and the second component mixed liquor in mass ratio 100:10~15 is mutually mixed, prepares equal
Even mixed liquor；
Step S22：Mixed liquor is added after 10%~20% clear water opens dilute stir evenly and brushes or is sprayed on woodenware.
The woodenware lacquer of the embodiment of the present invention can supporting aqueous one-component or two-component woodenware priming paint, applied to furniture, door
On the woodenware such as window, bathroom.
Technical scheme is described further with specific embodiment below.
Embodiment 1
According to the proportioning of embodiment 1 in table 1, wetting dispersing agent, coalescents, defoamer are added into aqueous polyurethane and disperseed
In body, stir 10~15 minutes, be configured to the first mixed liquor.According to the proportioning of embodiment 1 in table 1, flatting silica is added first
In mixed liquor, stir 10~15 minutes, be configured to the second mixed liquor.According to the proportioning of embodiment 1 in table 1, by scratch resistance auxiliary agent
Add in the second mixed liquor, stir 10~15 minutes, be configured to the 3rd mixed liquor.According to the proportioning of embodiment 1 in table 1, by water
Property acrylic acid dispersion, substrate wetting agents, levelling agent, in-can preservation agent, thickener add the 3rd mixed liquor in, stir 4~8 points
Clock, is configured to the 4th mixed liquor.According to the proportioning of embodiment 1 in table 1, deionized water or pure water are added into the 4th mixed liquor
In, stir 4~8 minutes, preparation obtains the first component mixed liquor.According to the proportioning of embodiment 1 in table 2, by curing agent and dilution
Agent mixes, and stirs 4~8 minutes, obtains the second component mixed liquor.The rotating speed of above-mentioned stirring is 400~600 revs/min.
In use, by the first component mixed liquor and the second component mixed liquor of the woodenware lacquer of embodiment 1, according in table 3
The proportioning mixing of embodiment 1.
Embodiment 2
Embodiment 2 is identical with the preparation method of embodiment 1, and the specific component and proportioning of embodiment 2 are referring to 1~table of table 3.
Embodiment 3
Embodiment 3 is identical with the preparation method of embodiment 1, and the specific component and proportioning of embodiment 3 are referring to 1~table of table 3.
Comparative example 1
Comparative example 1 is identical with the preparation method of embodiment 1, still, scratch resistance auxiliary agent is not included in comparative example 1.Comparative example 1
Specific component and proportioning referring to 1~table of table 3.
The component and proportioning of 1 first component mixed liquor of table
The component and proportioning of 2 second component mixed liquor of table
| Material | Dosage (wt%) |
| The poly- diisocyanate of water-dispersion type | 85 |
| Diluent | 15 |
| Total amount | 100 |
3 woodenware lacquer of table forms and the performance test results
From table 3 it can be seen that woodenware lacquer prepared by the embodiment of the present invention passes through the synergistic effect between each component so that
The paint film formed after final crosslinking is dry has high rigidity, high scratch resistance energy, excellent wearability, water resistance, chemical resistance；
In addition, comparing single-component water-based woodcare paint product, hardness and mechanical performance lifting speed are fast, after drying 24h at normal temperatures
Reach higher hardness of paint film and excellent chemical resistance, and construction influenced by environment temperature, humidity it is relatively small, always
Body excellent combination property.Wherein, by comparative example 1 compared with embodiment 1~3, scratch resistance auxiliary agent can be apparent to of the invention real
Apply the scratch resistance important of the woodenware lacquer of example.Comparative example 1 causes film clarity since flatting silica dosage is big
Difference, turns white, and resistance to marring is poor.And embodiment 1~3, due to adding scratch resistance auxiliary agent, keep having while the product high grade of transparency
There is extinction effect, the dosage of flatting silica can be substantially reduced, improve product transparency, and be avoided that paint film leaves cut, significantly carry
The high splendid adhesion strength of paint film and surface slip.
The woodenware lacquer of embodiment 3 and commercially available aqueous double-component dumb light woodenware lacquer are under equal conditions constructed pair
Than：Paint film dries 24h under room temperature, carries out performance contrast test, the results are shown in Table 4.
The performance comparison of the woodenware lacquer and commercially available woodenware lacquer of the present invention of table 4
As shown in Table 4, the woodenware lacquer that prepared by the present invention, it is mute that its film transparency is substantially better than certain commercially available aqueous dual-component
Light woodenware lacquer product, and pot-life of constructing is longer, hardness rises soon, and paint film dries 24h under room temperature, has shown pole
Good hardness, resist blocking and that, scratch resistance, water-fast and chemical-resistance, excellent combination property.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included within protection scope of the present invention.
Claims (8)
- A kind of 1. woodenware lacquer, it is characterised in that by mass ratio be 100:10~15 the first component mixed liquor and the second component Mixed liquor forms；Wherein, each ingredient percent of the first component mixed liquor is made of in terms of 100% following component：Water Property dispersions of polyurethanes 35~45%, wetting dispersing agent 0.5~1.0%, coalescents 2~4%, the first defoamer 0.2~ 0.3%th, the second defoamer 0.3~0.5%, flatting silica 1~2%, scratch resistance auxiliary agent 2~3%, water soluble acrylic acid dispersion 35~ 45%th, substrate wetting agents 0.3~0.5%, levelling agent 0.3~0.5%, in-can preservation agent 0.1~0.15%, thickener 0.5~ 1%th, deionized water or pure water 5~15%；Each ingredient percent of second component mixed liquor is in terms of 100%, by such as Lower component composition：The poly- diisocyanate 85% of water-dispersion type and diluent 15%；The aqueous polyurethane dispersion is the polyester polyurethane dispersion of hydroxyl functional group, and the aqueous polyurethane disperses The solids content of body is 36~40wt%；The flatting silica is without the flatting silica of surface treatment, the particle diameter of the flatting silica For 3~6 microns；The water soluble acrylic acid dispersion is the anion pp acid dispersion of hydroxyl functional group, described water-based The solids content of acrylic acid dispersion is 38~42wt%；The substrate wetting agents are Siloxane-Oxyalkylene Copolymers class surface-active Agent.
- 2. woodenware lacquer as claimed in claim 1, it is characterised in that：The wetting dispersing agent for alkyl polyoxyethylene ether it is non-from Subtype surfactant；And/or the coalescents are gylcol ether coalescents or propane diols ethers coalescents；With/ Or, first defoamer is polyether siloxane copolymer class defoamer；And/or second defoamer is in polyethylene glycol Hydrophobic solid and brokenly bubble polysiloxanes mixing species defoamer.
- 3. woodenware lacquer as claimed in claim 1, it is characterised in that：The scratch resistance auxiliary agent is the organically-modified polymerization of micronizing Thing.
- 4. woodenware lacquer as claimed in claim 1, it is characterised in that：The levelling agent is acrylic copolymer surface modifier； And/or the in-can preservation agent is isothiazolinone biocide agent；And/or the thickener is non-ionic for polyurethane association Thickener.
- 5. woodenware lacquer as claimed in claim 1, it is characterised in that：The poly- diisocyanate of water-dispersion type in water from The poly- diisocyanate of emulsifying, the solids content of the poly- diisocyanate of water-dispersion type is 100%；And/or the dilution Agent is propane diols ether solvent.
- It is 6. a kind of such as the preparation method of Claims 1 to 5 any one of them woodenware lacquer, it is characterised in that including：Component as follows in terms of mass percentage is mixed to get the first component mixed liquor：Aqueous polyurethane dispersion 35~ 45%th, wetting dispersing agent 0.5~1.0%, coalescents 2~4%, the first defoamer 0.2~0.3%, the second defoamer 0.3~ 0.5%th, flatting silica 1~2%, scratch resistance auxiliary agent 2~3%, water soluble acrylic acid dispersion 35~45%, substrate wetting agents 0.3~ 0.5%th, levelling agent 0.3~0.5%, in-can preservation agent 0.1~0.15%, thickener 0.5~1%, deionized water or pure water 5 ~15%, each component in the first component mixed liquor amounts to 100%；Component as follows in terms of mass percentage is mixed to get the second component mixed liquor：Curing agent 85% and diluent 15%, each component in the second component mixed liquor amounts to 100%；It is 100 according to the mass ratio of the first component mixed liquor and the second component mixed liquor:10~15 pack respectively To the woodenware lacquer.
- 7. the preparation method of woodenware lacquer as claimed in claim 6, it is characterised in that the first component mixed liquor of obtaining Process includes：The wetting dispersing agent, the coalescents, the defoamer are added in the aqueous polyurethane dispersion, are configured to First mixed liquor；The flatting silica is added in first mixed liquor, is configured to the second mixed liquor；The scratch resistance auxiliary agent is added in second mixed liquor, is configured to the 3rd mixed liquor；By the water soluble acrylic acid dispersion, the substrate wetting agents, the levelling agent, the in-can preservation agent, the thickening Agent is added in the 3rd mixed liquor, is configured to the 4th mixed liquor；The deionized water or pure water are added in the 4th mixed liquor, preparation obtains the first component mixed liquor.
- It is 8. a kind of such as the application process of Claims 1 to 5 any one of them woodenware lacquer, it is characterised in that including：By the first component mixed liquor and the second component mixed liquor in mass ratio 100:10~15 is mutually mixed, prepares uniform mixed liquor；The mixed liquor is added after 10%~20% clear water opens dilute stir evenly and brushes or is sprayed on woodenware.
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| CN109233588A (en) * | 2017-05-09 | 2019-01-18 | 德莱特恩环保涂料(北京)有限公司 | A kind of double-component waterborne polyurethane finish compositions and paint base composition, and preparation method thereof |
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| CN111117463B (en) * | 2020-01-07 | 2021-05-25 | 石家庄市油漆厂 | Water-based spray coating two-component polyurethane coating and preparation method thereof |
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| CN102031048B (en) * | 2010-12-15 | 2012-12-26 | 惠州市长润发涂料有限公司 | Matt varnish for waterborne wood |
| CN102952460A (en) * | 2011-08-30 | 2013-03-06 | 上海富臣化工有限公司 | Bi-component water-based wooden door varnish |
| CN102533078B (en) * | 2011-11-30 | 2014-05-21 | 万华化学（广东）有限公司 | Water-based coating and preparation method and application thereof |
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